# python里用内置函数print输出
# def print(self, *args, sep=' ', end='\n', file=None):
# print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
# sep是输出是元素之间的分隔符
print('hello', 'world', 'good', end='------')
print('123', '456', 123 + 456, sep='+')

# python里用内置函数input接收输入
# def input(*args, **kwargs):
age = input('input your age please: ')
print(type(age))  # python的input默认是字符串类型

height = 180
height = input('input you height please: ')
# print(height+1)
